HarperCollins. (1991). Collins COBUILD English guides. 1, Prepositions. HarperCollins.
Chicago Style (17th ed.) CitationHarperCollins. Collins COBUILD English Guides. 1, Prepositions. London: HarperCollins, 1991.
MLA (8th ed.) CitationHarperCollins. Collins COBUILD English Guides. 1, Prepositions. HarperCollins, 1991.
Warning: These citations may not always be 100% accurate.